Elsevier

Urology

Volume 60, Issue 6, December 2002, Page 1112
Urology

Case report
Paratesticular leiomyosarcoma in an elderly man

https://doi.org/10.1016/S0090-4295(02)02076-9Get rights and content

Abstract

Soft tissue tumors, both benign and malignant, of the testes are relatively uncommon. Primary leiomyosarcoma of the testis is rare, and its clinical behavior is difficult to predict. We report a case of paratesticular leiomyosarcoma in a 71-year-old man. Routine histologic examination and immunohistochemical staining were performed. The tumor was composed of interlacing fascicles of smooth muscle cells with marked nuclear pleomorphism and three to four mitoses per high power field, with few atypical mitoses. On the basis of the microscopic examination and immunohistochemical studies, the tumor was identified as a paratesticular leiomyosarcoma. The published studies on this entity are reviewed.

Section snippets

Case report

The patient was a 71-year-old African-American man who presented with an oval, nontender mass clinically confined to the left epididymis. His past history was significant for left epididymitis and urethral stricture treated by surgery. He denied any history of testicular trauma. The digital rectal examination revealed a benign enlarged prostate. Approximately 10 months later, scrotal sonography showed a 3 to 4-cm mass with increased echogenicity arising from the epididymis of the left testis.

Comment

We reviewed the published studies for reported cases of paratesticular leiomyosarcoma (Table I). Among the paratesticular sarcomas, leiomyosarcoma is the second most common sarcoma in frequency, preceded by liposarcoma; however, it is the most commonly reported histologic type followed by liposarcoma and rhabdomyosarcoma.1 Few cases of paratesticular leiomyosarcoma have been reported.2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 Leiomyosarcoma is a soft-tissue tumor arising from smooth muscle cells

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